Radiator



r 2 Sheets--Sheet 1. 'J. B. DYAR.

(No Model.)

RADIATOR.

Patented June 24, 1890.

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No. 430.930. Patented June 24, 1890 WW W WM W UNITED: STATES PATENT OFFICE.

JOHN B. DYAR, OF DETROIT, MICHIGAN.

RADIATOR.

SPECIFICATION forming part of Letters Patent No. 430,930, dated June 24, 1890.

Application filed September 25, 1889. Serial No. 324,986. (No mod l.)

To all whom it may concern.-

Be it known that 1, JOHN B. DYAR, of Detroit, in the county of Wayne and State of Michigan, have invented a new and useful Improvement in Radiators, of which the following is a specification.

My invention consists in an improvement in radiators, hereinafter fully described and claimed.

Figure 1 is a side elevation of a radiator. Fig. 2 is a section on line 00 m, Fig. 1. Fig. 3 is a section on line y y, Figs. 1 and 5. Fig. 4 is an end View of a radiator, and Fig. 5 is a side elevation of one of the inner loops of a radiator.

A represents a cast-iron radiator-loop havin g on each side, near its lower end, a threaded opening D, by which the two adjoining loops are connected by a right-and-left-hand-screwthreaded nipple H, Fig. 3, and a radiator is built to any required size by connecting a proper number of these loops together, and then connecting the steam and return pipes with the openings D at the ends of the radiator. Radiators of this class are usually supported by resting the lower ends of the loops on a separate base or by carrying the weight on the steam and return pipes, and the object of my invention is to so construct the loops that when put together they form their own base, and also cause a forced circulation of the air which is warmed by the inner surfaces of the loops.

B B represent fins, which I cast on the loops A-two on each side of each loop (except the end loop, which has fins B only on one side)- and these fins extend part way up the sides of the loops (usually about half-way, though this may be varied at will) and extend below the bottoms of the loops, where the fins are widened, as shown, so that the fins on opposite sides of each loop merge together below the loop and on their outer edges abut against similar fins or adjoining loops or sections, to form a base on which the loops rest, as clearly shown in the drawings. I prefer to rabbet the edge of each fin, as shown at I, to make a rough joint between the fins on adjoining loops. By this construction, where a number of loops are joined together, the fins 13 form an air-space C under the loops, from which rise between the loops air-conduits J, formed by the loops and fins, through which air entering the air-space G rises, as indicated by the arrows, thus causing forced ascending currents of heated air through the conduits J.

K K represent doors in the end loops of the radiator, hinged, as shown at L, and by opening or closing said doors the airspace C in the base of the radiator can be thrown into or cut off from communication with the air of the room in which the radiator stands. By connecting the air-space O with the outer air the radiator will force currents of warmed fresh air into the room. This may be donein any convenient way, F, Fig. '5, representing a pipe leading from the outer air and opening under the base of the radiator, and F, Figs. 1 and 5, representing a similar pipe opening through the side of the base, a portion of which is cut away for that purpose. Of course the pipe which connects with the outer air, howeverit may come in, should have a damper or register by which it may be closed, which may be worked from without the radiator or within the base, access thereto being afforded by the doors K K.

By reference to Figs. 1 and 3 it will be seen that in the inner loops the fins B, where it extends below the loop, is the full width of the loop and of the two opposite fins, while on the end loop, which has fins on one side only,

it is only as wide as the loop and one fin, and by referring to Figs. 4 and 5 it will be seen that on the outer side of the end loop the fins B are connected across the loop, leaving only space for door K, while on the inner side of the outer loop and on both sides of the inner loops the two fins B of each loop have no connection with each other except through the loop.

That I claim as my invention, and desire to secure by Letters Patent, is-

1. A radiator-400p having two projecting fins on each side thereof extending from a point above to a point below the bottom of the loop and adapted to abut directly against similar fins on the adjacent loops, the opposite fins being widened beneath the loops and merged together to form an air-chamber beneath said loops and vertical air-conduits between the loops, substantially as described.

2. A radiator end loop having on one side two projecting fins: extending from a point above to a point below the bottom of the loop, having a Wall connecting said fins below the bottom of the loop on the outer side, and a door in said wall, substantially as shown and described.

3. A radiator consisting of aseries of loops provided with fins connected with similar fins on the adjacent loops from a point below to a point above the bottom of the loops, said fins being widened and merged together below the loops, substantially as described.

4. A radiator consistingofi a seriesof loops;

each having two downwardly-projecting fins extendinglfrom-apoint above to a point be? low. th'ebottom .of the loops,-said finsbeing widened and merged :togethcr beneath the. loops-and "abuttingragainst theifinsof adjoin-w ing loops to form an air-chamber orhollow base beneath the loops,.and vertical air-conduits between the loops, substantially as described.

5; The combination, with a radiator composed of loops, each of which is provided with @two projecting fins connected with similar JOHN B. DYAR.

WVitnesses CHARLES B. Lorrmor, GERTRUDE ANDERSON. 

